Usually, the shell of the helmet is made of high-strength materials, such as metal, engineering plastics, Kevlar fiber, etc., through its deformation to absorb most of the impact; the lining material has the ability to absorb sweat, keep warm, and absorb shock. Military helmets often have the functi

Every year, thousands of cyclists suffer head injuries that could have been prevented with a properly fitted bike helmet. The difference between a helmet that fits correctly and one that doesn't could be the difference between walking away from an accident and suffering a serious brain injury.

Your bike helmet sits faithfully on your shelf, ready for your next adventure. But when was the last time you considered whether it's still protecting you effectively? Many cyclists assume their helmet will last indefinitely, but the reality is more nuanced.

Every cyclist knows that a good bike helmet is essential for safety on the road or trail. But what many riders don't realize is that even the highest-quality helmet won't protect you forever. Understanding when to replace your helmet could literally save your life.